Add-on access module for a telephone set



FIG. 1 is a front perspective view of the add-on access module showing my new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a bottom plan view thereof;

FIG. 5 is a rear elevational view thereof;

FIG. 6 is a right elevational view thereof;

FIG. 7 is a left elevational view thereof;

FIG. 8 is a front perspective view thereof showing, in dashed outline, an associated telephone set;

The broken line showing of a fragmentary module support edge in FIG. 1; and of an associated telephone set, and a fragmentary module support edge in FIG. 9 is for illustrative purposes only and forms no part of the claimed design. 

The ornamental design for an add-on access module for a telephone set, as shown and described. 